Type-writing machine.



C. B. YAW. TYPE WRITING MACHINE.

APPLICATION YILBD 0012, 1907` Patented Jan. 25, 1910.

B SHEETSSHEET l.

L Ay.

1-115 ATTRNEY C. B. YAW.

TYPE WRITING MACHINE.

APPLOATION FILED 00T. 29, 1907. 947,269. Patented Jan. 25, 1910. 8SHEETS-SHEET 2.

Www-:5555 1LT NVENTDR:

1-ll5 ATTQRNEY C. B. YAW.

TYPE WRITING MACHINE.

APPLIUATION FILED 00T. 29, 1907. Y

Patented Jan. 25, 1910.

B SHEETS-SHEET 3.

WITNEEEE.:

ww. 39 jW/ YQ4-v, f34 7W MJA/PQM rhs ATTURNEY C. B. YAW. TYPE WRITINGMACHINE.

APPLICATION FILED 00129, 19o?.

INVENTUI 6L @yur Patented Jan. 25, 1910.

s SHEETS-s115211 4.

WITNESSEE:

1-h5 ATTURNEY TYPE WRTH APPLIGATIQN r1 Patented Jan. 25, 1910.

8 SHEETS-SHEET 6,

INVENTUR TNEEEES:

a0 i T MT J7A C. B. YAW.

TYPE WRTING MACHINE.

APPLIGATION FILED 00129, 1907.

Patente Jan. 25, 1910.

8 SHEETS-SHBET 7.

Inn/ENTER:

xA/fTNEEEEE;

C. B. YAW.

TYPE WRITING MACHINE.

APPLIOATION MLBD 00129, 1907,

Patented Jan. 25, 1910.

B SHEETS-SH BET 8.

Y. im;

(Noll 1-15 ATTURNEY equip such BENEDICT, or ILION, NEW

YORK, A CORPORATION OFNEW FORK.

TYPE-WRITING MAGINE.

Specification of Letters Patent. Patented J an. 25, 1910.

Application. led October 29, 1997. Serial No. 399,757.

To all 'whom it may concern:

Be it known that I, CLIO of the United States, lington, in the county ofHudson and State. of New Jersey, have invented cegtain new and usefulImprovements in Type-Writing Machines, of which the following is aspeciication.

My invention relates to typewriting machines and its object, generallystated, is to1 machines with an improved mechanism of the charactercommonly termed a carbon roll mechanism.

To the abovegeneral end my invention consists in the features ofconstruction, arrangements of arts and combinations of deviceshereinafter described -and particularly pointed outin theV claims.

The invention is illustrated as ap lied to a Remington typewritingmachine ut the. nature of the invention is such that it may be embodiedin other styles of writing machines. 1

In carrying out my invention I havebesides providing improved devicesfor handling a roll of material such as carbon pa )er or other transfermedium also provi ed B. Yaw, citizen and -resldent. of Arl other devicesand have modified some of the t mechanism of the machine to which myinvention is shown asapplied so as greatly to facilitate the handling ofthe classes orV kinds of work to which4 my invention. is

. especially adapted.

I partof a Remington typewritingsmac 45 .Although the various'featuresof my invention-have been'devised for the rimary it is to be un erstoodfeatures may be used that some o said feathat some of said withoutothers and tures are capable of use in other relations than thoseshown.' l i One form of the invention is illustrated in the accompanyingdrawings, whereim- Figure l is a front elevation of the vupper me'showing my invention applied ther to, parts of the machine bein omittedand parts broken away. Fig. 2 is a side elevationI of the upper part of'the machine showingmy invention in place thereon, parts of the machinebeng omitted and parts broken away. Fig. 3 is a fragmentary. rearelevationj of a partof my invention hereinafter termed a paper 'supportor table*v Figf. is a central ongitudmal sectional` Vieww of the papertable shown in Fig. 3. Fig. 5 is a side elevation of the upper part ofthe machine similar to Fig. 2 but showing my invention and allied partsin different relations. Fig. 6 is a fragmentary fore and aft section-.1lview of the platenand carriage showing thc arts in the relations inwhich they appear 1n Fig. 5, Fig. 6 being drawn to a larger scale thanFig. 5. Fig. 'i' is a sectional view taken longitudinally through thereceiving.

and delivery roll holders of thc carbon roll device. Fig. 8 is asectional vien taken on a plane represented by the line ruf-:c in Fig. Tand looking in the direction of thc arrow at said line. Fig'. 9 is asectional view taken on a plane represented by the line g/-y in Fig. 7and looking 1n the direction of the arrow at sald line. Fig. 10 is aface view of one of the roll holders showing the `method of attachingthe carbon paper or vother material tosaid roll holder. Fig. 1l is afragmentary top plan view of the. platen and carriage of the machine andshowing arts of my-invention in section. Fig. l1 1s an enlargedsectional view taken on a plane representedby the line .a in Fig. 11 andlooking in the direction of the arrow at said line. Fig. 12 is afragmentary sectional view taken transversely through the platen andcarria e and showing also the upper part of the 'rame of the machine andparts of myY invention. Fig. 13 is a fragmentary sectional view lookingfrom the rear toward the front and showing part of 'the pa r feedingdevices which coperate. with t e platen. Fig. 14 is a fragmentarysectional view taken,a centrally and longitudinally of the platen andshowing the right-hand end portion thereof. Fig. 15 is a fragmentary endview showing the .platen and variousllne spacing devices. theiplatenfinger wheel being sectioned away., is a 'perspective view of theright-hand platen head. Fig. 1.7 is a perspective view of a `special-0rsupplementary ratchet wheel connected with the platen. Fig. `1S is aperspective viewr of the line spacing ratchet wheel.` Fig. 19 isiafragmentary perspective view of the device for operating the ratchetwheel shown in Fig. 17.

4Referring rst more particnlarlv'to Figs. 1, 2, 11, 12 and 13 of thedrawings, the main frame Yof the machine is shown as comprising cornerposts 1 supporting a top plate Fig. 1G.

. of a rock shaft 12.

Standards 3, rising from the top plate, su port a stationary trackway 4,and standart` s 5, risinfr from the top plate in rear of the standards3, support a rear guide rod 6. A carriage truck 7.15 provided Withrollers 8 which run on the track-way 4. Integral with the truck andextending rearwardly therefrom is a central horizontal arm 7 carrying aguide spool 7" and which coperates with the guide rod 6. The truck 7 hasforwardly and upwardly extending side bars or lbrackets 9. Pivot screws10 having locking nuts 11 extend through the side bars 9, said pivotscrews-having conical inner ends which engage depressions in the endsThe rock shaft near its ends is provided with upwardly extending cranl:arms 13 which enter slots in the rear bar 14 of a platen frame orcarrier, said crank arms being pivotally connected with the rear bar 14bpins 15. In addition to the rear bar 14 the platen frame comprises sidebars 16 and a front har 17. The front bar carries a block 18 in which ispivoted a wheel or roller 19, said roller running on a Shiftable guiderail 20, the latter being carried at the upper endspf arms 21 pivotallymounted` on the machine frame and adapted to'be actuated togchangc casein the usual manner. The platen frame and the truck above describedconstitute a carriage for a platen, which platen comprises the usualwooden core 22 t and rubber covering or Sheath 23. The platen isprovided with the usual lefthand platen head 24 4and axle section 25,the latter bearing in the left-hand side bar 16 of the platen frame andbeing provided with a finger wheel 26.

At its right-hand end the platen is preferably provided With a platenreleasing or fractional line spacing mechanism, such for example asshown in the patents to lVoodward Nos. 784,368 and 784,369, dated March7th, 1905 andillustrated-inFigs. 14, 16 and 18 of my drawings. Thismechanism is used in connectionwith novel indicating deviceshereinafter'described, and a brief description of said mechanism willnow be given.

Referring-to Figs. 14, 16 and 18, therighthand'platen`head-has a reducedportion 27 vfhich is seated .in the core 22 ofthe platen,

Vthe platen head being secured to the core by serews28 which ass throughopenings 29 in the platen hea and thence into the 'coe'R-The right-handplaten head 1s pro- 1 vided outside v,)f the core 'of the-platenA withriv .p4

a track-W11 0r bearing surface 30 and with i fa reduced nb portion 31.providing a second traclrway or' bearingsurface 32 of less diameterthanthetrack-way 30. Extending htward from the hub portion 31 is a nip- 33whichen ages in a bear' opening the ri lit-han side bar 16 of t e.platen frame; "f he right-hand laten head is formed i `with. a centralore extending tlirouglrit from end to end, said bore receiving an axlesection or spindle 34, the outer end of which is ovided with a lingerwheel 35, the latter aving a hub portion 36 which receives a screw 37 bywhich the finger wheel is fixed to the spindle. The tracleway 32 hasmounted on it a ratchet wheel 38, the latter having a fiange 39 whichcoperates with the track-way, and being maintained in lace by a coverplate 40 which is attached to the hub 31 by screws 41. ',lhe flange 39is embraced by the ,gripping jaws of a pair of grippers 42 which are arranged in slots or cut-aways 43 formed in the right-hand platen head,the noses of the grippers coperating with the bottoms of the slot Ways43. The inner inclined edges 44 of the grippers are adapted to coperatewith rollers 45 carried by a device 46 mounted on the inner end of thespindle 34. This spindle may move endwise in the right-hand p aten headbut is independently ot' said platen head by win s 47 extendingoppositely from the spinde and cooperating with a slot-Way 48 in thelaten head. A contractile spring 49 is coiled around the spindle and 1sconnected at its left end thereto and at its right end to the platenhead. The sprin pulls the spindle toward the right an normally maintainsthe parts in the relations shown in Fig. 14 with the grippers 42 inoperative position, their gripping )aws clamping'the revented fromturning' flange 39 of the ratchet Wheel 38 and thereby compelling theplaten and the ratchet head to turn in unison. By pressing inward on thefinger wheel 35, however, the grip ers 42 may he released and the platenturne independently of the ratchet 38, the latter being held by theusual spring mounted .roller Idetent 50 (F ig. 15). It will be4understood that when the grippers 42 are in operation an actuation ofthe usual line spacing handle or lever arm 51 will cause the usual or asuitable line spacing pawl 52 to coperate with the ratchet Wheel 38 toeiect line space turning movements of the platen. Reference may be hadto the patents above referred to for a fuller description and exlanationof the platen Areleasin mechanism. Of course any other suita le platenreleasing mechanism may be usd instead of 117, loosely surrounds theright-hand si e ortion'of the track-way 30 on the riglitand platen head.The ratchet Wheel lill' wheel 3S ht. screws 54 so that the two ratehetwheels are always compelled to turn to-` gether. The teeth of theratebet wheel 52% l., correspond in number to the teeth of the ratchetwheel IllQ.. but as will he eeen beat from a eonaideration ot Fig. theteeth of the wheel fail are oppoSitelyY disposed to the teeth oi." theratchet wheel 38. Cooperative 'with the ratrhet wheel 53 is an actuatingdevire shown in detail in Fig. lt) and oom prisingI an annnlns or ring(Shown partly hrolfen away in Fig. 19) which surrounds and adapted toturn on the left-hand si'de portion of the track-way 30. As Shown inFig. ll the annulus is arranged side by side with and to the left of theratchet. wheel 53.y the annnlns being confined between the ratehet wheel:33 and a tiange $30* on the right-hand platen head. Said annnlns isprovided with a lug 55 to which is pivoted at 5G an angularsupplementary platen rotating or hack setting lever comprising a pawlarm 5*? and a handle or arm 58. t. The pawl tooth at the end of the arm57 is adapted to eo'iperifite with the teeth of the ratehet wheel 52% toatl'ord a continuons tarn ing movement of the; platen in backward orrovere-e direetion as will hereinafter be more 'fallutw deeerihed.Normally the paWl is dieeng ged fronijtltie ratchet wheel, however, asahown in. Fig. l5, being held in that poaition hy the 'weight of the armfit-l. A. limiting pln 59 extending laterally from the pawl arm 57ooperates With an opening 60 of larger diameter formed in the lng 53a onthe annnlns 55 and serres to limit the n10- tion of the lever :37. aboutits pivot 5G. The supplementary lever normally oeenpiee the positionShown in Fig. l5 in which position the annnlna ia arrested hy thecoopera tion ofA the lng 5.3 with a stop arm 55h, said st op arm beingseenred by headed eerewe 55 to a Cross har 1"1 at the rear 0f theplaten.` The eonstrnrtimi is Such that it' the lever 5S he drawn forwardfrom its noriaLimSition shown in Fig. l5. nntil it is arrestedlby thetront har ot the platen frame, the pawl .7T will tix-at he moved intoengagement with a tooth ot the ratrhet wheel fill and will then tornAaid ratrhet wheel and the platen in reverse direetion throilgh apredetermined etiatiinre.

Referring to the paper feeding devices whieh are adapted to cooperatedireetly with the platen. in the present ease l prefer to arrange Snehderieee in revel-.ae ot die tonal order. 'that i# to sa ihrr a devices 1whieh hare heretofore heen at :he hart; of the platenl have plaeed atthe front and site versa. Haring ratei-ener more eepeA .iall'y'to Figs.ll. l2 and lil, Said paper feeding deriven comprise 'i `pair olf paperlingers 62 of the nenal or snitahle eonetrnrtion, said paper fingersbeing adjnetahly afl is rigidly connected with the ratehetl l l mountedon a Supporting or eroae lar (l1 which iS arranged at the rear ot theplaten. and is snitablliT eeenred at its ends to the. eide hara` iti ol'the platen traine. The paper lingers` 62 extend downwardly and lorwardlyfrom Said liar llt and eoiperate with the rear and under side ot theplaten. ft central paper gni-de or letlerlor tll is se eared tothe harlll hy (et-roam lll and entende downwardly at the rear of the platen asshown. Cooperative with the front` it|e ol' the platen is a onrred papergiiide or. paper apron (35 piotallj)v mounted on a shaft 6G which isjournaled in hearing hloeks tl? se" eared to the under eide of the.front har 'll' of the platen traine near the ende thereof by headedscrews Wire springs tt) eoiled around the shaft titl eoliperate with thepaper apron (Si) to pre1; it eoirstanll)v toward the platen. The shaftGti has` de pending arms TO eeenred to it, said arme carrying a feedroller shalt T1 which snpports a sectional leed roller, the set-tione T2whereof coperate with the platen or the paper thereon through openingsin the paper apron, lire springs T3 eoiled around the Shaft (l0 tendeonetantly to prees the feed roller toward the platen. A relea =e handleT4 is Fixed to the Shaft titl near its righi hand end` Said handleCarrying a pii'oted latch T5 which is adapted when the handle ispressed. rearwardhP to the position shown in Fig 1Q to ei'igage with thelocking' pin 76 extending laterallly inward from the, lefthand Side harlll. W'hen th releasing handle or lever arm Tl is, pressed rear` wardlyit turnav the shaft (3G and swings the paper i" eed roller away from theplaten and the latch 71' and loelqing pin TG cooperate to lock the leedroller in released position. vWhen it` is desired to restore the feedroller to operative position the linger portion T5 of the lateh ispolled forward, thereinr dieengaging Said lateh from the pin TG. Arestoring Spring T7 :resists to restore the feed roller and afieoeiateparte to working position.

The usual ventral volte block on the platen traine and etraddling theehitt rail Q0 is preferably di pensed with and in its place l providetwo angled yoke platee TS arranged one near eaeh end ot the platen trameand elann'wll against the ander side or the liloelif` il? lo' the headedaerewe t {Figa 1l. l2 and lill. yThe "reke platea 7S are each formedwith a. noteh shaped lille an inrertefl V. ab ele-arly shown in Fig. l2.the edgee of the notehee being therein designated hy the rellzi'eneerharaeter T9. The notches are adapted to eo'o'perate with the ehi'l'trail f2() in eiiher of the positions to which said rail in ahiftahle,the result of auch cooperation being to guide the roller 19 intoengarement` with the shift rail 20` Whenever the platen carrier. havingbeen lnovel indieatinf usual blocli the head of the. rigrhbhand screwS8, Athe con- The indicatl struction beinpr such that by loosening thescrew 9S the setting member or plate 96 shift rail 2O midway ol' itslength. ".l`he` evice is pivoted to said bleek at S2 anlis preferablymade from a sheet metal blank bent` to the shape most ele-arly shown inFig. and eomprisinp; ears and a horizontally disposed arm from whichsaid ears are-bent. upward, said horizontal arm being Curved upward atits rear end portion to eoperate with the rod tit). A vertieallydisposed arm l5 is bent upward from the forward end portion olf the arml, .said arm S5 terminating at its upper end in a horizontally disposedpoint ed part 313, which part is the poirtt`er proper and cooperateswith a nmel"`indieating de viel or seale member which preferably re#-plaers the usual carriage scale and which will naiwv be de' ibed,reference being had more partienlarly to Figs. l., 11, 1i, 12, lll and13. The. indicating devices comprise an actuating bar ST Whioh isslidable upon the front bar l? of the platen frame, said actuating barbeing formed with longitudinal slots 5T which reeeive headed screws 8S.the latter holding the bar S7 on the platen frame but permittingrmorement. of said bar lengthwise of itselt and ot said platen trarne. STis provided at its left end with a finger pieee or handle S9 by which itmay be directly actuated and at` its rightdiand has secured to it byscrews 90 a rearwardly eX- tonding horizontally disposed arm 91, saidarm beingy twisted so as to provide a vertical .lo\.-\nwardly extendingportion 9i which is Adotted as indicated at 91h (Fig. to embraee the.spindle Si. The portion 9i normally lies close to the hub 3G ot' theright-- hand linger wheel 35 and at its left side is eontiguous to a.washer 92 surrounding the `:pindle 3l. .l coiled spring .)-l, as bestshown in Fig. 14, is compressed between the washer 92 and A.therightfhand side bar 16 of the platen frame, said .springtr tending toniaintiiin the arm Ul and the bar 87 in thei positions shown in Fig. 1l.The bnr ST z-p.,-.poits twoV opstanding headed shoulder srrews tl Theshouldered portions of these News parate with diagonal slots 94 formedn! a ale plate 95, said scale plate beingr slidahly supported on the bar87 and confined between the top si'lrt'aee of the latter and the underside of the heads of ther screws 93. The normal position ofthe scale Theactuating or slide bar may be shifted lengthwise of the scale plate 95.Ait its lett hand portion the plate 9G is provided with a downwardlyextending pin 9) which engages in a slot l0() formed crosswise of thescale plate 95 near its righthand end. lt will be obvious that byshitting the setting member titl the normal position of the seale platewill be altered with respect to the platen and the pointer S6, while atthe saine time the pin and slot oonnection between the seale plate andthe setting member )ermite said scale plate to be moved tower and awayfrom the platen whatever the normal position ot said scale plate. Thescale plate, as clearly appears in Fig. tl, is formell with a doublescale. one set ot scale marlis being at the rear side of the seale plateand the other set at the front side` thereof, the trent scale markscoperatingj with the pointer S6 and the rear scale marks directly withthe wort; sheet on the platen. From the construction just described itwill be apparent that when the actuating' or slide. bar HT is shiftedendwise toward the left the screws 93 will eoilperate with the diagonalslots 9i in the scale plate and force the scale plate bodily rearwardtoward the platen, longitudinal motion of said scale plate being rprevented by the pin 99 and slot 100. This rearward movement ot' thescale plate may be eli'eeted by pressing the linger piece S9 toward theleft, or is automatically etfeeted when the right-hand platen fingerwheel 35 is pressed inward to operate the platen releasing devices.Vthen the linger wheel is pressed inward for this purpose the hub 3Gthereof acts againsty the portion 91" of the arm 91 to press said armtoward the lett witlttlnresult that the bar 8T is slid lef'tward and thescrews 93 on said bar eo-aotfwith the slots 94 in the scale plate as'hasbeen described to force the scale plate rearward toward the platen.Obviously'the scale plate will be maintained in its rear position aslong as the finger wheel 35 is kept pressed in, and this whether or notthe linger .vheel be turned at this time to rotate the platenindependently ot the line space wheel On releasing the` finger wheel thespring 93 will restore the Figs. 11 and 1Q. and so that its front. edgre is cloee to the end ot the pointer The pointer and scale coperate tonllord an eiiev reading of the latter. The pointer is mein k tained inits coperative position b v preseure of the rod 8U on the reni. curvedpor tion of the arm 84. When the platen traine or carrier is raised forany pur ose the rod n() separates from the arm' 8l o the pointer orindicating member and allows the latter to rock back to the inoperativepogition Shown bv the dotted lines in Fig. 12. The parte are constructedso that this pivotal movement of the indicating member or pointer toinoperative,position will be etlected bv gravity but. in order toquicken the initial stage of the movementy l prefer to provide a leafspring 84a which is euiinblv secured to the pointer and eoiiperntes :itits free end with the shift rail for the pui'- poee specified. Thisspring also acts as :i stop to prevent the pointer from movingr too fortoward the rear when the platen trame is in normal position. The pointeror indicating member is pivotally mounted and caused to move in thedescribed manner in order that it may not interfere with tlie partemounted at tbe front of the pleiten carrier {1.2'. e... the block.,roller 19and volte plate 78) when the platen carrier is raised. Thenovel platen rotating indicating: and paper feeding devicesliereinbefore described. While they may be used separately or in anydesired manner. are primarily intended to be employed in connection withcarbon roll mechanism now to be described.

The roll of carbon paper or other transfer medium is mounted on a framewhich is vertically disposed rising above tbe platen and supported inpart on arms 101 (Figs. 1.y 2. 11 and 1Q), said arms being'.r generzilhTtriangular in shape and horizontally die posed.. their forward endportions being pcrforfited to tit over the outer ends of the screwpivots 10 sind beine: clamped between 9 ot the ce trnrlt. und the d nuts11. i' i iii-nie if?! e provided willi en inuziridv extending* lng orpin "Ulli 10i which if; adapted to rest or be sented on the top oi' thecarriage truck T at the end of the latter Each arm 101 pivotnly snp-]iorte one of die eide arms of the carbon roll 'frameT said side nrmbeing preferably in the form ol :i rod 1053 mode hollow for stiffnessfind lightness; and which :it its; lower end is suitably secured to asolid block 101 which is slotted to tit over the end of tbe associateeroi lfll and is pivoted thereto at 105 (Fig. El). lncb rod 103 isprovided near euch of its ends with a strap 10G which is connected t.10T with one end of :i hollow rod or brace 108, these rods beine6arranged diagonally or inclined toward the middle of tbe treme .r ofwhich they :torni :i port :1nd each of Suid EN rods being connected ai109 to a central l member, couplingr or tie piece 110. There -fire fourot tlic tic rods of the clinrnrtri inet described and in addition lprefer lo provide another stiilening rod 111 connected ut 112 to the tiepiece 110 and thence extending' Qubetnntinllv vertically downward to :icrew member or support 113, the` latter screwing into the arm T* of thecarriage truclr nod the rod 111 being pivotnll'v connected with themen'iber 11? :it 114. lief-l1 tranne, rod 103 is provided :it its uppercud with :i enit ably secur-.d solid end picco il which i Slotted toreceive pliitcdilte nrm or traine piece 11G, the latter being;Vconnected with the associate end piece 115 bv a screw 11T. Below the endpiece 115 euch trame rod 1li?) is provided with a strap 11S, the endportions` of which embrace the lower purl, of tbc associate rod 116. Across rod or Support 119 (Fig. T) extends from one strap 118 to theother, Seid rod beiner formed with rcduced and threaded/end portions 120which portions pase through perforfitions in the Straps 11S and :irme116. A nut 121 is` threaded on each end portion 1:20 und serves to clampthe ends ot the strap 11S und tbe arm 12D between said nut 121 and theend ot the body portion of the rod 119. The rod 119 serves as a 'framerod :ind also :is :i enpport for ii carbon roll device presently to bedescribed.

By menne of the construction juet` de- .eeribed the frame is renderedrigid iit` its upper end portion :1nd the arms 11, :ire rigidlyvconnected to Said frame. Tliie frame may, for convenience ofdescription. be termed the mnin supporting rnnie for tbc carbon rolls.ln addition to tbe main eupporting frame l provide what may lic termednn auxiliary frfinie which ie pivot-ally connected to the main carbonroll treme :it die top und to the pinten brame :it the bottoni. Thisauxiliary frame comprises hollow Side` :irme or rods euch provided itsilpper endwitb e solid end pim" l liicli is elolted to cinbruee theassociate erm 11G and pivntzdly connected to said erm by e Screw pivot1%. At its lower end each auxiliary frame rod 122 is provided with unend piece 125 Slotted to receive the upper end portion of an arm orbracket secured to the platen tronic. The right-hund arm or bracket 126triangular in shape and is secured buv ecrcwsn 127 to the right-bandside or end ber lll of the platen frame. A screwpivo'r 198 arrangedilirecll..r above the axieiof the platen connecte the riglitdiand rod122 with the arm lill. The left-bend arm or brieket 12) is angled,lnivieg :i vertical part and a horizontal part, the letter being seatedon thc top ot the leftliund side bnr 16 and being provided with a slot130 (Fig. 1L), seid slot receiving heeded Screws 131 by which thebracket 129 is secured to the platen freine. A pivot screw 132, directlyabove Tll lllii the platen aria. pirotally connreta the leftl holder.,Within the h hand rod 12; with its; hre.' liti. "thia end of the springits conne hon roll din-*irre proper. theae are he t illustrated inFigi. 1. T. o. .1 and 10. The upper end portionot the left-hand arin orplate i 11h is pei-toward to receive the reduced end portion 13? tf ashaft or axle 1131. the body ot' the 4haft and the reduced end portionforming at their jonction a shoulder which ia adapted to ahnt aejainaftho inner fare of the left-hand arm llt. The Shaft 131 extend.;hr'iri'aontallv hotween the arnia` 116, pafssing' through a hearingopening in the rie'hlrhand :irni 111i and projecting heyond said arm,the outer end portion ot. the shaft being threaded as indieated at 135to receive the rolla'r jirtion 121V of a eraiik or linger piet-e 1237.:aid millar portion hrhr; Yfornied with an interior-11i' threadedopening which engagiw` the threaded part of the` shaft )ill and thnaronlnets the shaft and the eral-ih. eollar 1in* is, adapted to he fixedto the shaft 1211 liv a wt ew 123i). .Caid eoilar ahntting` agg'ainatthe, inner l'aee ol the righthand arin 111i and i-oiiperating with th!1r-honlder at', the left end ot the shaft lii to prevent endwi-i1movement oi said `aha't't in it#` hearingV wliihat the @aine time permittingr rotation o'l' Said Shaft'. rotar)v mate rial carrying deviee orroll holder ia anpported and secured to the ahaict il. said ri'll holderin the present inetaneo lining in the forni of a nietallie tithe, drinnor riiiool 140 open at the lelthand end and rloaed at the right-hand endby an end portion 141. the latter projecting (nitwardl}Y beyond theSurface of the roll holder or tnhe 1+() so as to provide a iange 142.The hub 143 of the roll holder extends rightwardly and eentralluv fromthe end portion 111, Said hnh being perforated to permit of the passageof the shaft 134 to Whieh said hnl) ia `sernred b v a set Screw 111-11.

metallic strip 115 extends longitndi nally of the roll holder 140 and issnitahlut1 secured at its ends to said roll holder. strip 145 is soconstructed and arranged that an opening or slot-way 1116 is forrnedhetween it and the surface o1' the roll holder. The strip 115 Serves asan attaching device for the material whirh is wound upon the rollholder. Said material in the present instaure hein; earhon paper anddesignated by the ninneral 14T. As shown in Fig. 10 the sides ot' therarhon paper near one end are ont away or folded so as to forni inrlinededges 14T?. t1 a tn'o'viding a narrow tongue 14T which is arm-ted in orthreaded ihrotwh the openingn 1li-G and Seres to frietionally attac-l1the carbon paper to tha roll may 'be termed The ` the end ot the roliholder 140.

' ner.

4r hare of the roll holder 140 a wire spring* 14H surrounds the ha1't131. The right-hand end or' the spring ia Ser-nredor hooked in an'opening in the end ill of the roll holder. The le1`t-hand ed hy a screwitil to a rotary ineinher '1510 which is in the nature of a head for theleft-hand end of the roll holder 140. The member or head 150 is providedwith a boss 151 which fits into the hore ot the roll holder 11101 theperiphery of Said boss Servin as a hearing for the left-hand end of theroll holder. 1.30 in provided with a Hnge 152 corre- Sponding with theflange 142.11m two fianges cooperatingr to properly guide the carbonpaper as it is wound on and off the, roll holder. Said head is furtherprovided with a leftwardly extending central huh portion 1523 whirhtern'iinates in a Sprocket Wheel 154- having sprocket teeth 155. Thehead. is adapted to rotate on and relatively to the. shaft 134. )lotionot Said head longtlr Wise of Said shaft toward the right is pre4 ventedhy the eohtaet of the flange 152 with Motion of the head lit) toward theleft alongr the Shaf, iS prevented h v a Sleeve 15G which is oon tinedhetn'een the right'dland face of the head and a rollar 15T which isSecured to the shalt 12B-l h v a art serein 15S. The head 150 and theroll holder l-itl are eonneeted hy Vie The head spring 11S and ranged tooperate in a maar ner whf-h will prerntly ho deserihed. The sprolfinftwheel 154A of the head 1.3() Coiipi eratea with a Sproehet Chain, saidrhain Conipriaing ping 159 which are adapted to engage in the openinofahetween the Sprocket teeth 1:75. the pins 150 heing connected hy linka1h11 in the nsnal or in anysnitahle inan- Tho sprocket chain alaoeoperatea with the teeth 1(31 of a Sprocket wheel 1(32, Said sprocketWheel heilig similar to the sproeket wheel 154 and heine; integral witha huh 1133 whit-h extends letitward from. a rotary nnmher or head 164,said head being Supported hy and adapted to rotate on -the rod 119. Thetivo sprocket wheels '1B-1 and 1ML are So ronnerted h v the spree-lietchain that rota ry movement eonn'in'lnieated to rnv oi' the heads titlor 164 will he, eornnr rated to a snhatantially equal extent to theother ot' aid heads. The hr: l 164 is prevented from moving leftwari.afong the rod 119 by a collar 165 which is` S'eclirfL rod h v a setscrew 1136, said collar ng ae'ainat the left-hand face of the sproeketwheel 102.

The head 164 is provided with a flange 16T and with a boss 168 whichl tein the left end of tubular rr mata:mai-carrying device. roll hol-113idrinn 113i?, said boss 10S` Qervingf as a. apart and hearing for Saidroll hdldery ,i5 roll holder 109, which receiving roll holder, is

disposed below and close to the delivery roll holder 111-0 and issimilar in construction tlm-ero. The roll holder 16) has a righthand endportion or head 17() and a flange 171,l said head being loosely mountedon the rod 1151. ,t collar 172 secured to the rod 110 by a set aerea'173 abats against` the right end ot the roll holder 1611 and preventsnioveiuent ot said roll holder rightward along the rod 119. Toward theleftfendwise movement of the roll holder 169 is prevented hy the flange167 of the4 head 164 againet which flange the end of the roll holder 169abuts. The lett-hand endof the roll holder, ot course.. preventsrightward inovelnent of the head 164 along the rod 119. The constructionis sueh that both the roll holder lili) and the head llt-t may rotatetogether or itulependeiltly of each other on the rod 119, but neitherthtl roll holder nor the head is movable. during the operation of themechanism. lengthwise ot` the rod 119. The roll holder 165| and the head104 are connected by a. spring 174. said spring being arranged withinthe hollow bore or' the roll holder lot) and surrounding the rod 119.The righehaiul end of the epring 174 is attached to the end portion 170and the lefthand end ot said springr is attached to a threaded ineniher'173 which member screws into the head lill. the spring 174 being Woundopp0- .sitely to the spring 148. It Will be understood that one ot' thesprings 148, 174 may he dispensed with if desired and the associate rollholder may have its left-hand head rigidly secured to said roll holder,the sprocket chain of course being retained to connect the two heads. Insuch a construe tion the single spring would act on both roll holders asthe two springs do in the construction shown. iThe single springr wouldact` directly on one roll holder and would act on the other through thesprocket chain. By employingvtwo sprin s, however, not only is a greaterlength o spring attained hat the advantage is also attained of having as )ring connected directly to each roll hol er. metallic strip 176similar to the strip 145 is arranged lengthwise of the roll holder 1119,the ends of said strip being suitnhl;v attached to the roll holder. Thestrip is construeted and arranged to provide an opening or slot-way .177between the strip and the surface of the roll holder. said strip vserving to attach the carbon paper to the roll holder 169 1n a mannersimilar to that above described in connection with said delivery rollholder.

In arranging the carbon paper in place and attaching it to its support,said carbon i ot the springs 118 and 174.

latter and toward the rear .side of the re 70 i ceiving roll holder 169.At this time it may be assumed that there is no tension in either Priorto attaching the outer end of the carbon paper to the receiving rollholder 1(59 the operator winds up the two springs or puts theln undertension, preferably hy grasping' the flange 171 and turning it and theroll holder 1h21 in the direction of the arrow in Fig. S, While at thesaine time holding and maintaining the loose or free end ot the carbonpaper near the roll holder 169. During this turning of the roll holder169 the roll holder 11() will be prevented from turning because of thefact that the operator is holding' the S5 loose end of the carbon paperwhich is wound upon said roll holder 140. lt will he understood that theturning or winding up of the spring 174 will ett'ect a suhstan tiallyequal turning or Winding up of the spring 14S. vIn other Words, thetension or turning force of the two opposingr sllnings will bemaintained at all times su slantially equal. This perhaps` will be clearit We follow the operation of Winding up the J springs in a littlegreater detail, having ret erence more especially to Fig. 7. The turningof the tlange 171 will turn the` righthand end of the spring 174attached to Asaid i. flange. Part of this turning movement will llea'bsorbed in Winding the spring 174 and the remainder will betransmitted to the lettfhand end of the spring 174 which is attached tothe head 164 and will elleet a` turning movement of said head and Ot'the Sprocket` wheel 162 integral therewith. The motion of the sprocketwheel 162 will be transmitted through the sprocket chain to the s rocketwheel 154 and to the head 150 integra therewith. The turning of the head150 effects a turning or Winding up of the left-hand end of the spring148 attached to said head. The right-hand end of the spring 141B ls fastto the end of the roll holder 140 which at thie time is prevented frommoving under the impulse of the spring 14S by the grasp maintained bythe operator ou the free ord loose end of the carbon paper. Theconstruction is such that when the spring 148 is substantiallx,Y Woundup the opposing;r

spring 174 will also be substantially wound up. The operator may thenattach the lorse or free end of the carbon paper 147 to the roll holder169, bringing the carbon paper np at the rear of said roll holder andthreading the end. which is provided with a tongue similar to the tongue147", through the opening or slot-Way 177 formed in part b v the strip176. The Ranges 167 and 171 coperate with the carbon paper to cause 1tto wind 130 and unwind properly on the roll holder 161). From aconsideration of Figs. 7, 8 and 9 and from what has been said it; willbe apparentthat the tension or pull of the sprnig 148 *i will tend torewind the carbon paper 147 on the roll holder 140 and that. the tensionor pull of the springr 1711 will tend to wind the opposite end portionof the carbon paper on the roll holder 169 so thatlthe straight por- 19tions of the carbon paper between the two roll holders and the platen.will be lnaintained in a tant condition at all times. The .pull or forceexerted by the two opposing s )rings is kept at all times substantiallyt e same b v the, sprocket connection between them and conseqnentl),y noturningJ or winding of the carbon paper on either spool will take. placeexcept'J when additional power is applied by the operator to ldraw thecarbon paper in one direction or the other around the platen over oracross the printingr point thereon, as will presentl;Y be described morefully.

The Carbon roll devices above described 25 may be made use ot' in anydesired way and provide a ready means of duplicating the copy made bythe nsual inlting ribbon of the machine. These novel devices are pardtieularly adapted for use with a folded work sheet or bill sheet ot thecharacter shown in Fig. 1, and one mannero emplo Ting the carbon rolldevices will be explainet in conneetion with a bill sheet` of thischaracter'. Said bill sheet is composed of two sections 35 or leaveswhich for descriptive purposes will be numbered 17S and 17W. the saidleaves being joined at the right-hand edge by a crease or fold 1780. Thefolded bill sheet is adapted to straddle or tit over the straight 'l0portion of theI carbon paper 147 between the delivery roll holder andthe platen. the front leaf 17S beingr in front ofthe carbon paper andthc leat` 17S" behind the carbon paper, the folded edge 178" being closeto the rightfn hand edge ot' the carbon fiaper. In operating themechanism each lolded bill sheet is in tarn caused to straddle or fitover the vai-hon paper in this way, then fed back wardlv over and aroundthe platen nnlil the "39 lirst \\'riting r line is reached and thenwritten npon and advanced line by line in line spacing direct ion` l`ofacilitate the bielnvard feeding of the Y bill sheet and canse it to beproperly guided "i dnrinpr the backward feeding' movement, preferablyprovide a supporting device or table which is shown clearly in Figs. 1,3 and 4. The table. designated bythe numeral 179. is in the forni of anoblong plate substanlially vertically arranged between the andsubstantially parallel therewith, said table being pivotally supportedon the snp- .r plementary frame of the carbon roll device "0 as will nowbe described.

Angled brackets 150, are secan-ed in pairs at the rear ot the table 17)in any suitable way ashbv .si-rows 151 Said brackets are provided withears lttt" nhich are perl'o` rated to provide bearimr openings 'lorparal 0 lel bearing rods 1HE. last to the opper rod 1.822 near each endthereof and betonen the ears 180a arma or linlts loi) no1-mall)` extenddownward and are fixed atV their loner ends to a sleeve 184A. aid.sleeve surrounds and 7 bears on 'a rod 1%.?. sa id rod boing threadedat its ends to receive nnts ltti b v which the rod is attached to clamps1ST fast on the side rods '122 of the auxiliary traine. lletween thelower pair of cars ltltla and last on the lower l'od 15; near its endsare angular members each comprisingr an arm lds non mally extendingdownward and an arni ist normally` exteinliircv rearward. 'The arno` lSSare fixed at their lower ends to a sleeve D 190 which snrronia'ls asupportingr rod lill. said supporting rod being threaded atV its ends toreceive nata 1512 bv which the rod if: held. in fixed relation withclamps jail clamped on the frame rods 12). Collars lili fixed to the rodlill b v set .screws lo?, abat against the ends ot' the sleeve 100 andserve to prevent bodily sidewise movement of the table 179. Fingerpieces 10b are secured to the ends of the rod 182 and project beyond 95the side edges of the table 179, said tinger pieces serving as means forconveniently manipillating' the table 179. The normal or inoperativeposition of this table is shown by full lines in Fig'. 4. lt'roin aconsideration of this figure it will be seen that at this Cgi , time thetable stands sonic distance behind the forward straight portion of thocarbon paper 1.47 so that the folded bill sheet may be readilyY slippedover or caused to straddle this portion ot the carbon paper without.being impeded b v the. table. lfVhen the bill sheet has been thasarranged with its lower edges some 'distance above the top of theplaten, one or another of the finger pieces ltlt ma),Y be grasped andthe paper table 179 may be swung forward to the position indicated bydotted lines in Fig'. 4 and bv full lines in Fig. :2. The forwardmovement of the table will be arrested by the engagement ofthe ends ornoses of the arms 189 with the back ot' said table. lVhen arrested, aswill be seen clearly from a consideration otlltig'. 2, the table will heagainst the rear leaf of 'the folded bill sheet and will be nearly tan-120 gential of the platen, the lower edge of the table being at thistime but a short distance abovethe platen. The table when thaspositioned will guide the folded bill sheet;

. smoothly and evenly over the platen as said two straight portions otthey carbon paperl folded bill sheet is fed backwardly throngh themachine, will assist to prevent rnmpling or improper creasing of saidbill sheet during,r this backward feeding movement and l will hold therearleaf of the fplded bill sheet forward and guide it down over thefront of the-platen. The plate 179 is held by gravity in either of itstwo positions. As shown in Fig. 4, the links 188 when in full lineposition are inclined backward from the rod 191 which supports them. andwhen in dotted line position said links extend forthrou h the usual or alsuitable ink-ing rib-Tlf i not shown) and thatthese type imor item hasbeen written and' duplicated in this vmanner the work sheet'l may` be'linel ward from said rod. T he links 15? are pre- 1 spaced by operatingtheusu'al line s ace vented from passi-ng the dead center posit lever5l, and then the tion by contacting with parts of the brackets 180, asshown in Fig. 4.

Assuming that the folded bill sheet has been arranged to embrace orstiaddle the forward straight portion of the carbon paper, said billsheet is nextfed backwardly preferably by operating the right-handfinger wheel 35, said finger wheel being first pressed inwardly torelease or disconnect the platen from itsA step-by-step line spacingdevices, 1I. e., the ratehet'wheel 38 and the c0- operating detent 50.It will be'i'ecalled that operation of the platen releasing mechanismautomatically moves the indicating device or scale plate 95 rearward.This rearward movement will continue until the rear scale on said plateis in juxtaposition to the front leaf 178 of the folded work sheet andso may be conveniently read in connection with the front leaf toposition 'the latter and the work sheet as a whole both widtliwise andlengthwise. When the platen has been of a predetermined line to apredetermine position with respect to the platen. The operator nextgrasps the handle 58 and pulls it forward from the normal position shownin full lines in Fig. 15 to the dotted line position in said figure.This movement of the handle 58 causes the pawl 57 to cooperate with theteeth of the ratchet wheel 53 to effect a continuous rotation or-turningmovement of the platen in the reverse direction to the extent of'cleventeeth' or eleven line space distances, which in the present case is justfar enough to bring the desired printing line from the point where itcooperated with the scale 95 to the printing.

on the outer leaf 178 of the bill sheetY rinting and ines acingoperations may e continued untilV t ie entries on the folded bill sheethave been completed and the latter moved forward out of the machineuntil it again rests onthev are effected by the coperation of the carbonpaper 147 with the platen. The carbon paper.

is drawn comparatively tight `againstA the platen by the opposingsprings inside the roll -holders and when the bill sheet is guideddownwardl f until its rear leaf 178h is caught in the bite etween theplaten and thefcarbon paper, the friction will be sufficient thereafterto feed the work sheet backwardly until printing position is reached andthence forwardl)r again until the work sheet is fed out of the machine.When, however, thin writing paper is used the feed roller 72 may bebrought into operation with advantage. It 'is not thought necessary toexplain in etail the operation of the feed roller 72, the

ion

apron or guide 65, paper fingers 62 and the central stationary guide 63.These several devices operate or may operate likelthe correspondingdevices on the Remington m chine, the onlyr difference being that intiley present case the operation is in reverse order to the usualoperation.

It will be understood that during the no i backward and forward rotarymovements A,

of the platen the roll holders will turn also and the carbon paper willbe drawn olf one of said rollers an wound on the other of said rollers,the straight ortions of the carbon paper, or those portions between-theroll holder and the latenV being, however, alwavs maintained 1n a tautand vsmooth condition so that'the type impressions made from the caibonpaper will always be clear and the dan er of smutting or freeingminimized. 1 t will also be understood that when a succession of billsheets are introduced in the machine one after the other and fedbackward-and forward and written upon, the 'same portion or Vsection ofthe carbon paper will be used in transferring impressions to the rear1eaf178" of each of these bill sheets, this being so because the 85 billsheet back and forth overthe platen carbon paper is first fed from thedelivery roll holder to the receiving roll holder as each bill sheet isbein fed backwardly through the machine, un then said carbon paper isre-fed to substantially the same extent from the receiving roll holderto the deliver roll holder as said work sheet is being y a section orportion of the carbon paper used in this way has become exhausted orused to such anextent that impressions from it are no, longer clear anddistinct a new or fresh section or portion of the carbon paper may be.brought into operation by turning theiplaten backward when no work sheetis vin the machine so as to cause the winding up on the receiving rollholder of a portion or section of the carbon paper equal subveostantially in area' to the exhausted portion or section. At rst thedelivery roll holder l is comparatively full and the receiving rollholder almost empty as shown in Figs. 7 and 9. lWith the roll holders inthis condition it will be evident that because of the larger diameter ofthe roll or carbon paper on the upper or delivery roll, the latter willreceive a less extent of rotary movement when anew sectionof the carbonpaper is unwound from it than will the receiving roll holder vin windingup an equal amount of carbon paper. Nevertheless, the opposingspringswill maintain the straight portions of the carbon paper in tautcondition. This difference in extent ot rotary movement of the two rollholders will lessen, of course, as

the amount of carbon paper on each roll holder approaches equallty. Whenthe amounts on the two rolls are substantially equal the extent ofturning movement of the two rolls will be substantially equal, andwhen'the exhausted carbon paper wound on the receiving roll holder isgreater in diameter than the 'remaining portion on the de-` livery rollholder the conditions first above described will of course be reversed.vIt will f be understood that because of the unequal turning movementsof the tworoll holders the springs within them will run down when thereceiving roll holder is turning more rapidly than the delivery rollholder and care must be taken to provide springs whichr may be wound upenough to retain sufficient tension to maintain the carbon paper in ataut condition when the rolls of paper or othermateria'l on the rollholders are substantially equal in diameter. In ease the carbonkpaperwas originally rolled somewhat loosely on the delivery roll the springswill nevertheless keep the paper taut and wind it more tightly. Thesemay be called take-up or.compensating springs.

From what has been said it will be seen that the construction providesmaterial-carrying devices or roll holders arranged at the same side ofthe platen and combined with means tending to move them oppositely ed inline spacing direction. When (z'. e., in opposition one to the other),the means in the present case being opposing turning springs. Equalizingmeans are also provided for maintaining the springs or moving means inequilibrium, the equalizing means including the sprocket wheels andchain. From another point of view the sprocket wheels and chain may beregarded as comprised in a take-up device formin part of the connectionbetween the roll hol ers whereby each of them is adapted to talco upslack from the other when the papel' or other material which runs fromone of .the roll holders to the other is fed between said roll holders.

The Remington machine to which my invention is shown as applied is ofthe swinging platen class7 the plates being mounted 1n a platen frame orcarrier which is in turn pivotally and slidably mounted on a carriagetruck. The platen frame may be moved to and fro on the truck to changecase by operating one of the usual shift keys (not shown during whichmovements the relation between the platen and the two roll holders willbe only slightly altered. The roll holder springs 148 and 174 willoperate to keep the straight portions of the carbon paper taut duringplaten shifting movements and the friction between the (platen and thecarbon paper and the bill sheet or work sheet will maintain the platenand the printing line on the paper iii/unaltered relation during suchshifting movements. This feature of the invention will be discussed morein detail in connection with the lifting or upward swinging movements ofthe platen and laten carrier or frame. Then it is desiredpto expose thewriting line at the under side of thc platen for inspection, correctionor any other purpose, the platen frame may be swung upward and rearwardby the usual lifting handle 197 from normal position to the positionillustrated in Figs. 5 and (i. The platen and platen frame will bearrested and held in this abnormal position by the usual stop devices,said stop devices being clearly illustrated in Figs. 6, 11 and 12 andcom rising a block 14a fast on the bar 14 0 the' 'platen frame, saidblock being adapted to c0- act with the forward edge o a tongue piece198, the latter being secured by a screw 199 to a slide plate 200, saidslide plate at its forward end ortion bein hooked around the bar 14 andpat its rear icing lformed with a slot 201 which cooperates with aguiding and limiting screw 202 fixed in the arm 7 of the carriage truck.The slide plate 200 is normally positioned so that it engages with theunder side of the head of the screw 202 but when the platen and platenframe are lifted back to the position shown in Figs. 5 an 6, the slideplate 200 wilLengage with the arm 7^ as shown in Fig. 6. Rearwardmovement of the plate 200 is thus preand swun vented and consequentlythe forward end of the tongue 198 will coperate with the block 14 toarrest the platen and platen frame in' the position shown in Figs. 5 and6. From a. consideration of Figs. 2 and 5 it will be apparent thatduring this rearward swingingmovement of the platen the carbon rolldevices and their supporting frames, both the main and auxiliary, willalso be swung backward. The main frame during this operationwill fulcrumor pivot on the pivot screws 105 while the auxiliary frame will fulcrumon the pivot screws 124. There will also be a relative pivotal movementon the pivot screw 128 between the right-hand arm 122 of the auxiliaryframe and the bracket 126 fast on the platen frame and also acorresponding pivotal movement on the pivot screw 132 between thelefthand arm 122' and the bracket 129. During this movement of theplaten from normal to abnormal position the printing point will approach the delivery roll holder and will move farther from the receivingroll holder. The s rings withinV the roll holders, however, o notovercome the friction between the platen and the carbon paper and foldedwork sheet and consequently there will be no movement of thecarbon'paper or work sheet at the printing point but the delivery rollholder will turn to take up the slack in the forward straightportion ofthe carbon paper, and the receiving roll holder yield or turn so thatthe carbon aper may be unwound from it to allow For the increase in thedistance between the receivin roll holder and the printing point on thep aten. During the return of the platen and platen carriel; and tliecarbon roll devices and their supportin frames from abnormal to normalposition, t e relation between the platen and the lprinting point onthe' carbon aper and wor sheet will remain unchanged). It will beseen'therefore that the construction is such that the swinging movementsof the laten and platen frame or carrier are not interfered with whileat the same time these swinging movements do not affect the relationbetween the platen and the printing portion of the Work sheet and carbonpaper, nor occasion any looseness in said carbon paper Various changesmay be made without departing from the scope of my invention.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of two material-carryingdevices, and

means tending constantly to move both said devices each in opposition tothe other.

In a typewriting machine, the combination of two rotarymaterial-carrying de vices, and means tending constantly to turn bothsaid devices to wind the material thereon.

3. In a typewriting machine, the combination with a platen, of twomaterial-carrying devices arranged at the same side of the platen, andmeans constantly operating to maintain in a taut condition the entirelength of the material which runs from one dev1ce around the platen tothe other device.

4. In a typewriting machine, the combination with a platen, of twomaterial-carrying devices arranged at the same side (if the platen, andmeans tending constantly to move both said devices each oppositely tothe otherso that the entire length of the lmaterial yvhich runs from oneof said devices around the platen to the other device is maintained in ataut condition.

5. In a typewriting machine, the combination with a platen, of tworotary materialcarrying devices, and means tending constantly to turnboth said devices in opposition to each other, the. material passingfrom one device to the other over the platen.

6. In a typewriting machine, the combination with a platen, of tworotary material-carrying devices arranged at the same side of theplaten, and means tending constantly to turn both said devices andmaintaining in a taut condition the paper or other material carried bysaid devices, said material passing from one of said devices around theplaten to the other device.

7. In a typewriting machine, the combination with a platen, of twomaterial-carrying devices arranged above the platen, and means tendingconstantly to move both said devices in opposition to each other and tomaintain in a taut condition the paper or other material attached tosaid devices, said material passing from 'one device down in front ofthe platen thence under the platen and upward at the rear thereof to theother device.

8. In a typewriting machine, the combination with a platen carriage anda platen `mounted thereon, of a support on said carriage, twomaterial-carrying devices on said support, and means tending constantlyto move both said devices in opposition to each i mounted thereon, of asupport on said car riage, two materiabcarrying devices on said supportand arranged at the same side of the platen, and means tendingconstantly to move both said devices to maintain in a taut conditiorrthe`paper or other material carried by said devlces, said material passingfrom one device around the platen to the other device and being securedto said devices.

10. In a typewrting machine, the combination with a platen carriage anda platen mounted thereon, ot a support on said carriage, tivo rotarymaterial-carrying devices on said support, and means tending con-Astantly to rotate hoth said devices in o posite directions, thematerial passing rom one of said devices over the platen to the otherdevice.

ll. In a typewriting machine, the combination with a platen carriage anda platen mounted thereon, of a support` on said carriage, two rotarymaterial-cairying devices mounted on said support at the same side ofthe platen. and means tending constantly to turn both said devices inopposition to each other and to maintain in a tant condition the paperor other material carried by said devices. sa id material passing` fromone device over and around the platen to the other device.

1:2. ln a typcvvriting machine, the combination of a platen, two1natcrial-carrying devices carrying paper or other material which passesover the platen from one. device to the other. means tending constantlyto move hoth said devices in opposition to each other, and means formoving the platen for line spacing and feeding the material from onedevise to the other in line spacing direction.

1P. ln a` typewriting machine, the combination with a platen, ot' tworotary materialoarrying devices, tho material carried by said devicespassing from one device to the other over the platen. means tendingconstantly to torn both said devices in opposition to each other, andmeans for line spacing the platen and turning the devices to feed thematerial from oneI to the other.

tt. ln a typcivriting machine. the combi nation with a rotary platen, oftivo rotary materialcarrying devices. means tending constantly to torohoih .said devices in opposite dirrctioto. and means for rotating` theplaten for line spacing and feeding the niaterial farried in .saiddevices from one to the other, said devices turning in the samedirection daring line spacing movements of the platen and one only ofsaid devices turning;l in opposition to said tirst recited means.

15. In a typewriting machine, the combination with a platen, of t\vorotary material-cillrying devices arranged at the saine side o t` theplaten. means tending constantly to tnrn hoth said devices in oppositionto cach other and maintaining in a tant condition the paper or othermaterial carried by said devices. said material passing from one of saiddevices aronnd the platen to the other device. and means for linespacing the platen and turning said devices to feed the mate' rial fromone to the other.

lo. In a typewriting machine, the combination with a platen, of tivorotary material-carrying devices arranged at the same side of theplaten, means tending constantly to turn both said devices in oppositionto each other and maintaining in a taut condition the paper or othermaterial carried by said devices, said material passing from one of saiddevices around the platen to the other device, and means forturning-said platen back and forth in op osite directions and feedingthe material iiaek and forth from one device to the other.

17. In a typewriting machine, the combination with a platen, of tworotary material-carrying devices arranged at the same side of theplaten, means tending constantly to move both said devices each inopposition to the other and maintaining in a` tant condition thc paperor other material carried by said devices, said material passing fromone of said devices around the platen to the other device, and means forturning Said platen back and forth in op osite directions and feedingthe material ack and forth from one device to the other, said lastrecited means comprising two sets of platen rotating devices.

18. In a typewriting machine, the combination with a platen, of tworotary materiahcarrying devices arranged at the same side of the platen,means tending constantly to turn both said devices each in opposition tothe other and maintaining in a taut condition the aper or other materialcarried by said devices, said material passing from one of said devicesaround the platen to the other device, and means for turning said platenback and forth in opposite directions and eedin the material vhack andforth from one evice to the other, said last recited means comprisingtwo separately operative paWl-and-ratchet mechanisms,

19. In a typevvritin machine, the combination of a rotary p aten, a linespacing ratchetI Wheel operativel connected WithV said platen, ahand-contro led pawl coperative with said ratchet wheel to turn saidplaten in one direction for line spacing, a second ratchet Wheeloperatively connected with said platen, and a device cooperative withsaid second ratchet wheel to turn the platen in the opposite direction,said device comprising an annulus and a hand-controlled lever pivoted onsaid annales, one arm of said lever constituting a pawl, said le erhaving on its other arm a finger piece WKich is operative to turn saidannulus and said platen.

20. In a typewritin machine, the com blnation of a rotary p aten, a linespacing ratchet wheel operatively connected With said platen, ahand-controlled pawl coperative With said ratchet Wheel to turn saidplaten in one direction for tine spacing, a second ratchet Wheeloperatively connected 'with said platen, and a device cooperative withsaid second ratchet Wheel to turn the platen in the opposite direction,said devlce

